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**
** Copyright (C) 2017 The Qt Company Ltd.
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** This file is part of the QtWebEngine module of the Qt Toolkit.
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**
** $QT_BEGIN_LICENSE:LGPL$
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
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****************************************************************************/

#include <stdlib.h>
#include <malloc.h>

#define SHIM_ALIAS_SYMBOL(fn) __attribute__((weak, alias(#fn)))
#define SHIM_SYMBOL_VERSION(fn) __asm__(".symver __" #fn "," #fn "@Qt_5")
#define SHIM_HIDDEN __attribute__ ((visibility ("hidden")))

extern "C" {

SHIM_SYMBOL_VERSION(malloc);
void* __malloc(size_t size)
    SHIM_ALIAS_SYMBOL(ShimMalloc);

SHIM_SYMBOL_VERSION(free);
void __free(void* ptr)
    SHIM_ALIAS_SYMBOL(ShimFree);

SHIM_SYMBOL_VERSION(realloc);
void* __realloc(void* ptr, size_t size)
    SHIM_ALIAS_SYMBOL(ShimRealloc);

SHIM_SYMBOL_VERSION(calloc);
void* __calloc(size_t n, size_t size)
    SHIM_ALIAS_SYMBOL(ShimCalloc);

SHIM_SYMBOL_VERSION(cfree);
void __cfree(void* ptr)
    SHIM_ALIAS_SYMBOL(ShimCFree);

SHIM_SYMBOL_VERSION(memalign);
void* __memalign(size_t align, size_t s)
    SHIM_ALIAS_SYMBOL(ShimMemalign);

SHIM_SYMBOL_VERSION(valloc);
void* __valloc(size_t size)
    SHIM_ALIAS_SYMBOL(ShimValloc);

SHIM_SYMBOL_VERSION(pvalloc);
void* __pvalloc(size_t size)
    SHIM_ALIAS_SYMBOL(ShimPvalloc);

SHIM_SYMBOL_VERSION(posix_memalign);
int __posix_memalign(void** r, size_t a, size_t s)
    SHIM_ALIAS_SYMBOL(ShimPosixMemalign);

SHIM_HIDDEN void* ShimMalloc(size_t size) {
    return malloc(size);
}

SHIM_HIDDEN void ShimFree(void* ptr) {
    free(ptr);
}

SHIM_HIDDEN void* ShimRealloc(void* ptr, size_t size) {
    return realloc(ptr,size);
}

SHIM_HIDDEN void* ShimCalloc(size_t n, size_t size) {
    return calloc(n,size);
}

SHIM_HIDDEN void ShimCFree(void* ptr) {
    cfree(ptr);
}

SHIM_HIDDEN void* ShimMemalign(size_t align, size_t s) {
    return memalign(align,s);
}

SHIM_HIDDEN void* ShimValloc(size_t size) {
    return  valloc(size);
}

SHIM_HIDDEN void* ShimPvalloc(size_t size) {
    return pvalloc(size);
}

SHIM_HIDDEN int ShimPosixMemalign(void** r, size_t a, size_t s) {
    return posix_memalign(r,a,s);
}
}  // extern "C"
